Abstract: Traditional informatization performance evaluation investigated the level and stage of enterprise informatization comprehensively from investment perspectives like informatization equipment, personnel, resources development and utilization, etc. But evaluation based on input was difficult to measure the performance of enterprise informatization comprehensively and accurately. In order to promote the smooth developing of head office informatization construction, application, management and service, this article used the method of informatization performance evaluation to study and establish an evaluation system that could meet the requirement of railway informatization construction and management. In this evaluation system, informatization work, construction and efficiency of relevant railway institution and department could be evaluated and examined, with a result that all the railway informatization construction and management work could be carried out more regularly, efficiently and orderly. The result showed that the method was scientific, comprehensive and easy to operate, which was helpful to further improve the quality and management level of railway informatization construction.